Class: ActionDispatch::Journey::Path::Pattern

Inherits:
Object
  • Object
show all
Defined in:
lib/action_dispatch/journey/path/pattern.rb

Overview

:nodoc:

Defined Under Namespace

Classes: AnchoredRegexp, MatchData, UnanchoredRegexp

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(ast, requirements, separators, anchored) ⇒ Pattern

Returns a new instance of Pattern.



19
20
21
22
23
24
25
26
27
28
29
30
# File 'lib/action_dispatch/journey/path/pattern.rb', line 19

def initialize(ast, requirements, separators, anchored)
  @spec         = ast
  @requirements = requirements
  @separators   = separators
  @anchored     = anchored

  @names          = nil
  @optional_names = nil
  @required_names = nil
  @re             = nil
  @offsets        = nil
end

Instance Attribute Details

#anchoredObject (readonly)

Returns the value of attribute anchored.



7
8
9
# File 'lib/action_dispatch/journey/path/pattern.rb', line 7

def anchored
  @anchored
end

#requirementsObject (readonly)

Returns the value of attribute requirements.



7
8
9
# File 'lib/action_dispatch/journey/path/pattern.rb', line 7

def requirements
  @requirements
end

#specObject (readonly)

Returns the value of attribute spec.



7
8
9
# File 'lib/action_dispatch/journey/path/pattern.rb', line 7

def spec
  @spec
end

Class Method Details

.build(path, requirements, separators, anchored) ⇒ Object



13
14
15
16
17
# File 'lib/action_dispatch/journey/path/pattern.rb', line 13

def self.build(path, requirements, separators, anchored)
  parser = Journey::Parser.new
  ast = parser.parse path
  new ast, requirements, separators, anchored
end

.from_string(string) ⇒ Object



9
10
11
# File 'lib/action_dispatch/journey/path/pattern.rb', line 9

def self.from_string(string)
  build(string, {}, "/.?", true)
end

Instance Method Details

#astObject



43
44
45
46
47
48
49
50
51
52
53
54
55
# File 'lib/action_dispatch/journey/path/pattern.rb', line 43

def ast
  @spec.find_all(&:symbol?).each do |node|
    re = @requirements[node.to_sym]
    node.regexp = re if re
  end

  @spec.find_all(&:star?).each do |node|
    node = node.left
    node.regexp = @requirements[node.to_sym] || /(.+)/
  end

  @spec
end

#build_formatterObject



32
33
34
# File 'lib/action_dispatch/journey/path/pattern.rb', line 32

def build_formatter
  Visitors::FormatBuilder.new.accept(spec)
end

#eager_load!Object



36
37
38
39
40
41
# File 'lib/action_dispatch/journey/path/pattern.rb', line 36

def eager_load!
  required_names
  offsets
  to_regexp
  nil
end

#match(other) ⇒ Object Also known as: =~



158
159
160
161
# File 'lib/action_dispatch/journey/path/pattern.rb', line 158

def match(other)
  return unless match = to_regexp.match(other)
  MatchData.new(names, offsets, match)
end

#namesObject



57
58
59
# File 'lib/action_dispatch/journey/path/pattern.rb', line 57

def names
  @names ||= spec.find_all(&:symbol?).map(&:name)
end

#optional_namesObject



65
66
67
68
69
# File 'lib/action_dispatch/journey/path/pattern.rb', line 65

def optional_names
  @optional_names ||= spec.find_all(&:group?).flat_map { |group|
    group.find_all(&:symbol?)
  }.map(&:name).uniq
end

#required_namesObject



61
62
63
# File 'lib/action_dispatch/journey/path/pattern.rb', line 61

def required_names
  @required_names ||= names - optional_names
end

#sourceObject



164
165
166
# File 'lib/action_dispatch/journey/path/pattern.rb', line 164

def source
  to_regexp.source
end

#to_regexpObject



168
169
170
# File 'lib/action_dispatch/journey/path/pattern.rb', line 168

def to_regexp
  @re ||= regexp_visitor.new(@separators, @requirements).accept spec
end